快乐地

• joyously
• pleasurably
• happily
• gayly
• lightheartedly
• jocundly
• merrily
• rosily
• delightedly
• charmingly
• delightfully
• gladsomely
• joyfully
• blithely

例句

1. 我自己成功的标准是能够快乐地工作。
   My own criterion of success is the ability to work joyfully.
2. 你怎样做你的工作？我很快乐地做了我的工作。
   How did you do your work? I did my work happily.